Improvement in machines for thrashing and hulling clover



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IMPROVEMENT IN MACHINES FOR THRASHlNG AND HULLING CLOVER.

Specilicaiion forming part of Letters Patent No. l46,l37, dated January 6, 1874; application filed August 20, 1873.

To all whom it may concern:

Beit known that we, DAVID LIPPY, of Manseld, Richland county, Ohio, and ZALMON S. STOGKING, of the city of Cleveland, Ohio, have invented an Improvement in Clover Thrashing and Hulling Machines, of which the following is a specificationz Our invention relates, first, to the combination, with a revolving toothed cylinder and a thrashing-concave constructed in sections and provided with projecting teeth, of a cylindrical feeder formed of a series of disks, the periph-l eries of which are of unequal diameter, and present 4grooved and notched or ratchet-formed surfaces, leaving grooves or channels between .each-disk, second, to the combination, with the toothed cylinder, divided toothed concave, and feeder, before referred to, of a device for separating the straw from the clover-heads, consisting of a series of revolving toothed or pronged pickers, geared to revolve together by means of toothed pulleys and chains, a movable rack agitated or shaken by cams affixed on the picker-shafts, and an inclined deck or receiving board placed immediately under the picker, and so arranged that the pickers shall convey the clover-heads down the said incline to the divided toothed hulling-eoncave and toothed cylinder; third, to the combination, with the toothed cylinder, concave, and feeder and separator, before referred to, of a recess or chamber arranged in front of the toothed cylinder, `into which the chaff is discharged, the said recess or chamber being provided with an inclined bottoni, which forms a chute for the purpose of conducting the cloverseeds and chaff to an inclined vibrating screen. The invention also relates to the arrangement and construction of a second cleaner, movably attached by hinges, in combination with the upper cleaning-screens, and the second opening from the fan provided with an adjusting screw, spring, or lever, by which the blast of air may be increased or diminished in the second cleaner 5 also, to various details of the apparatus, hereinafter fully set forth and described; but, that our invention may be fully understood, we will describe the same in detail by aid of the accompanying drawings.

Figure 1, Sheet l, is a top or plan view.

Fig. 2, Sheet 1, is a side elevation. Fig. 3, Sheet 2, is a longitudinal section. Fig. 4, Sheet 2, is a detached view of the toothed cylinder and ratcheted feeder and rubber. i Fig. 5, Sheet 2, is a detached view of a part of toot-hed coucave. i

A is the frame and outside casing of the machine; B, the revolving toothedcylinder,

which, in, combination with C, the cylindricaly feeder and rubber, feeds the machine and delivers the clover-heads separated from the straw to the rack F. This feeder and rubber C is formed of a series of disks, c1, the peripheries of which are of unequal diameter, and present grooved and notched or ratchet-formed 'surfaces c2, leavin g grooves or channels c3 between each disk cl. This feeder and rubber C is designed for the double work of feeding the machine, and, in combination with the toothed cylinder B, breaking the heads of the clover from the straw, and also as a substitute for the stationary toothed dat arch77 or plane commonly set above the toothed cylinder B, and the small shaft armed with spikes or teeth, which is commonly used to feed clover-hullers. This feeder and rubber C, presenting a convex form to the revolving cylinder, and being graduated in motion to increase or decrease resistance, and having angular and grooved surfaces c2 c3, is free from all liability to wrap and clog by wet or damp straw, and is,vtherefore, very uniform in itsaction, while its peculiar form, receiving the teeth of the cylinder in spaces suited to their shape and size, forms a novel and eiiieient method of breaking the heads from the straw. Its niotion is not designed to be governed by the cylinder, but fixed and regulated by means of frictional gears or belts. D is the toothed concave, which is constructed in sections for two reasons, first, in order that when breakage occurs the section broken can be cheaply restored without the loss of the whole concave;

second, the sections are set apart just enough` ing pickers a e on shafts which are geared to run together by means of an endless chainoperating` chain-wheels E', affixed on thecnds of said rrrcn. N

2 maier shafts, and which are inclosedin aboX at the side of the machine. Over the said picker-shafts a rack, F is arranged, which is agitated by means of cams on the two extreme shafts. G is a board, upon which the clover-heads fall, which is placed at an inclination close to the pickers, so that they carry the clover-heads downward toward the thrashing-concave D. H is a recess in front of cylinder B,into which chaff, 85e., is thrown which does not fall through the concave. and which is conducted over the end D' of the concave D, down under the concave D, by means of the inclined bottoni H', to a screen, I. The screen I is set in a frame, J, which has an inclined bottom board, M, the said frame being suspended by means of straps L, and is agitated or shaken by means of a connecting-rod, K, attached to the under side, and operated by a crankshaft, K', set in the lower frame of the machine. N is a fan of the ordinary construction.. Under said frame is placed a second cleaner, consisting of a screen, I), and inclined board 1)' suspended by straps and arranged to be shaken by an oscillating crank-shaft, Il". Underneath said screen l? is a passage, 'lL-for a second blast of air from the fan, and has a gate, S, arranged at its intersection with the fanchainber, and is made adjustable by a setscrew, T, for regulating the said blast. At the lower end of the passage is a conductor, U, for conveying the cleaned seed into a receiver. The lower end of said conductor has a hood, V, which covers the receptacle for the cleaned seed, and prevents the ingress of dust thereto. At the right-hand end of the machine is a trough, W, in which is a revolving conveyer for taking such unscrecned stuff as falls into it from the screen I to an elevator at the side of the machine, and is conveyed back to the receiving-board G. A similar trough and revolving conveyor is placed under the second screen I), and such stuff as is not screened here is conveyed back to the screen I by an elevator, X', on the opposite side of the machine.

The operation of this machine is as follows: rlhe clover to be hulled is fed to the appara tus at l; the heads and straw are then separated by the rubber G and pass in the directionof the arrow 2, Fig. 3, onto the rack F, where the pickers c c separate the heads from the straw, the heads falling through the rack onto the receiving-board G, and thence they are conveyed by the reverse motion of the pickers, as indicated by the arrow 3, Fig. 3, to the hulling-concave D, where the seed is thrashed out and falls through onto the screen I, all unthrashed matter being conveyed by the revolving cylinder B, over the end of the concave D, into the recess Il, from which it works down also onto the screen I. The straw remaining on the upper side of the screen F is carried off by the pickers e and discharged out at the end 4L of the machine and deporited on the ground. The seed and chaff, passing through and over the end of the concave D onto the screen I, are separated by the agitation of such screen I, the seed falling through the screen I onto the board M, while the chaff and unthrashed matter fall onto the trough YV, and that portion which is not blown out by the action of the fan is conveyed back to the table G to be again operated upon. The thrashed seed now falls down the boa-rd l\[ onto a second screen, I), and is again skalren, after which it falls upon the board P', and is subjected to a second blast of air from the passage It, and is, therefore, thoroughly deprived of all dust and other extraneous matter. The trash which falls from screen I) passes into the conveyor X, and is carried back to the screen I by the elevator X' to be rescreened.

The top covering of this machine is made in parts and hinged together, so that a part may y be turned back, or the whole top may be re moved, at pleasure, for the convenience of get ting at the interior.

Having thus described ourinvention, what we cla-iin, and desire to secure by Letters Fatent, is-

1. The combination, with the revolving toothed cylinder B and the thrashing concave D, constructed in sections and provided with projecting teeth, of a cylindrical feeder, C, formed of a series of disks, c, the periphcries of which present grooved and notched or ratchet-formed surfaces, substantially as shown and described.

2. The combination, with the toothed cylinder I, divided toothed concave D, and feeder C, of the separator E, consisting of a series ol" revolving pickers, c, movable rack F, and inclined deck-board Gr, substantially as and for the purposes shown and described.

3. The combination, with the toothed cylinder B, concave D, feeder G, and separator Ill, operating as described, of the recess or chamber I-I, inclined bottoni II', and vibrating screen I, substantially as set forth.

4. In combination with the bottom board M of a screenfraine, J, and the fan N, the second cleaner, consisting of a screen, I), crankshaft P", passage R, and adjustable gate S, substantially as and for the purposes set forth.

DAVID LIPPY. Nitnessesz Z. S. STOCKING.

F. W. WAGNER, .Mains R. Binsro. 

